Converted Observatory object-common element

runtime/observatory/tests/observatory_ui/mocks/objects/inbound_references.dart

+// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+part of mocks;
+
+class InboundReferencesMock implements M.InboundReferences {
+  final Iterable<M.InboundReference> elements;
+
+  const InboundReferencesMock({this.elements: const []});
+}
+
+class InboundReferenceMock implements M.InboundReference {
+  final M.ObjectRef source;
+  final M.ObjectRef parentField;
+  final int parentListIndex;
+  final int parentWordOffset;
+
+  const InboundReferenceMock({this.source: const InstanceRefMock(),
+                              this.parentField, this.parentListIndex,
+                              this.parentWordOffset});
+}